To piggy back on the 220v questions. 

I had a new outlet installed when I purchased by L3+/APW3+ and figured out it wouldn't run on a standard 110v outlet.  The electrician said it was a 240v outlet, though I always hear 110v or 220v, so not sure where the discrepancy comes in?  I'm sure it's just a gap in my understanding.  In any case, the new outlet is on a pair of 20 amp breakers in the panel.

My real question though is if I can run another miner off this circuit?  Above it was described that the posters miners are likely running 4 amps on a 220 line, not sure how that fits in with "that outlet is used with 30A"?  If I could run more miners on this circuit, what would I need to do?

Sorry to piggy back on the discussion, but seemed like it may be interesting info for the original poster as well.